I have a final school visit planned for next week, but at this point I found my absolute perfect fit and I've signed the paperwork and everything. The school I would be visiting is a very loose research fit and I definitely don't see the visit changing my mind at all. I really don't want to burn a bridge since academia can be a small community, but I would rather not take two unpaid days off work if the school is not even in the running, and I'd rather not waste their time either.
I guess my question is, if I am honest with the PI that I have found a better fit and would rather not come, do you think I would burn bridges? Is there a way to do this and maintain good will or should I just suck it up and go?